488818631 has 4 divisors (see below), whose sum is σ = 558649872. Its totient is φ = 418987392.

The previous prime is 488818619. The next prime is 488818669. The reversal of 488818631 is 136818884.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 488818631 - 2¹⁰ = 488817607 is a prime.

It is a super-2 number, since 2×488818631² = 477887308025428322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488818691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34915610 + ... + 34915623.

It is an arithmetic number, because the mean of its divisors is an integer number (139662468).

Almost surely, 2^488818631 is an apocalyptic number.

488818631 is a deficient number, since it is larger than the sum of its proper divisors (69831241).

488818631 is an equidigital number, since it uses as much as digits as its factorization.

488818631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69831240.

The product of its digits is 294912, while the sum is 47.

The square root of 488818631 is about 22109.2431123275. The cubic root of 488818631 is about 787.7394281973.

The spelling of 488818631 in words is "four hundred eighty-eight million, eight hundred eighteen thousand, six hundred thirty-one".